Illuminating device for ovens.



T. oAsoAnE'm J11.- ILLUMINATING DEVICE FOR OVENS.

APPLIOATION FILED APB.18, 1910.

Patentd Jan. 3, 1911.

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To all whom it may concern;

Be it known that I, THoMAs OAsoAoEN', J r., a citizen of the UnitedStates of America, and a resident of Waterloo, Blackhawk county, Iowa,have invented certain new and useful Improvements in IlluminatingDevices for Ovens, of which the following is a specification.

My invention relates to improvements in illuminating devices forovens,;.and"the ob-- ject of my improvement is toprovide ai suitable andconvenient lighting means adapted to bring the contents of a heated eveninto full view from its outside without any necessity for opening theoven itself for that purpose.

This object I have accomplished by, the means which are hereinafterdescribed and claimed, and which are illustrated in the accompanyingdrawings, in which:

Figure 1 is a front elevation of a range with closed oven door, parts ofthe range being shown as broken away to disclose the light-producingmeans settherein. Fig. 2

is an enlarged detail view of a portion of the oven and its door, brokento disclose the electrical connections to the incandescent" light bulbmounted in said door. Fig. 3 is a vertical section of the oven and doorshown in Fig. 2, taken through the recess in the door in which the lampbulb is mounted. Fig. 4 is a front elevation of a range, with parts ofsame broken away to disclose illuminating means for the oven located ina different place from the means shown in the hereinbefore mentionedfigures. Fig. 5 is an enlarged broken detail sectional view of the ovendoor of the range, the section being taken vertically through thepeep-hole and its transparent cover. Fig. 6 is an enlarged detail brokensection, taken vertically, through the mounting of the incandescentlight bulb, as located in the inner wall of oven shown in Fi 4.

gimilar characters of reference designate corresponding parts throughoutthe several views. It being very desirable that the contents of an ovenmay be clearly seen when cooking without disturbing the process ofcooking by opening the oven door, I have designed means for effectingthat purpose. It is known, that if a peep-hole merely is placed in theoven wall or in its door, with-' out some means for otherwiseilluminating the interior of the oven, very little if anythmg can beclearly seen through such a f; lspegin eaflfqa r Letters Patent. aiieatm iueafaprii 1910. Serial no. 556,087.

Patented ams, 1911.

jlpeep-ho'le. If the peep-hole be covered with glass or some other kindof transparent body, very little light from outside is refracted throughsuch glass into the oven, and the glass rather reflects the light raysimpinging upon it, forming a species of mirror to t ground of the oven.It is therefore necessary to adopt some independent source ofillumination to be located within the oven or mounted in its innerwalls,to effectively disclose the contents of the oven to an observer at thepeep-hole or- Window. I

In Fig. '1 is shown a range of an ordinary type in which is an ovenprovided with a downwardly-swinging door 2. This door is formed of ahollow rectangular spacing body 13 whose lower corners have integraloutwardly projected pintles. Inner and outer face-plates 14 and 12 aresecured to said body by marginal framing 3. An ornamental covering-piece2 is shown over the middle portion of the outer surface of the plate 12.

As shown in Fig. 5, the covering-piece 2, and the plates 12 and 14 haveopenings 24, 25 and 26 respectively alined horizontally with each other,and used as a peep-hole into the oven. To cover said peep-hole, atransparent plate 4 is used, loosely mounted over the opening 26 in theplate 14, being set in a hollow frame 28 secured to the plate 14 bymeans of screws or other securing means 2 The transparent plate 4 may beplaced over either of said openings as desired, or thought necessary. Toone side of said peephole, the plates 12 and 14 only are orificed inhorizontal alinement to rovide a seat for the incandescent electriclight lamp 19, the opening in the plate 14 being the largest. A socketedlate 20 is secured to the outer face of the p ate 12 with its centralthreaded opening registering with the hole in said plate, and is securedto the late by bolts 17 and 21. In this socketed p ate theexteriorly-threaded base 20 of an incandescent electric lamp 19 isremovably seated, the glass globe of the lamp projecting through thealined o ening in t e surroun ed by a domed glass guard 18 whoseoutwardly flanged edge is held between the plate 14 and a reflector 16,the edge of the latter being also secured to said plate 14 by bolts 15and 22. The insulated conducting wires 7 and 10 of said lamp are passedthrough a conduit 8 in one of the pintles of OFFICE.

plate 14 and being the door frame 13, and thence downward to a dry-cellbattery 11 removably located in the base of the range 1, in acompartment 9.

The numeral des1 ates a make-andbreak device adapted or insertion in thecircuit of said wires, whereby the circuit may be made or broken throughsaid lamp 19 as desired.

In Figs. 4 and 6 are illustrated a variation in which the lamp 19 ismounted .inthe wall of the oven'23, instead of in its door. Theprinciple involved is the same, however,

and said lamp is secured in a socketed body 20 which is fastened to thewall 23 by means of bolts and 31. The reflector 16 is se-- I tend toconfine myself to any specific means of illumination, nor to anyspecific location of the illuminating means, the idea involved in myinvention being to provide suitable means for lighting the interior ofthe oven and for-permitting a view of its interior from its exterior.

I do not intend to confine myself to a window in the oven coveredwithany particular kind of transparent material, as either glass or mica orany suitable substance maybe used, and in fact, it is not essentiallynecessary that the peep-hole should be covered at all except in certaincases, as it may be left uncovered when desired, or found necessary.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is:

1. In combination, a stove containing an oven, an electrically-lightedlamp set in the rom its exterior, a transparent uard closing theaperture of said peep-ho e, a source of electric-lighting currentlocated in said stove without'said oven, insulated conductorscommunicating between said source of power and said lamp, and means formaking and breaking an electrical circuit through said lamp whendesired.

2. In combination, an oven having a door swung on pintles, one of saidpintles havin a conduit therein, an electrically-lighte lamp set in theinner wall of said door, means for making an electrical circuit throu hsaid lamp, and conductors leading to 31K? from said lam to said means byway of the conduit in sai pintle.

3'. In combination, an oven provided with a peep-hole covered by asuitable trans ar- Vent body, said oven having a door, an illuminatlngmeans in said door adapted to light up the interior of said oven.

4. In combination, an oven provided with a door, 1i .hting-means seatedin the inner wall of sald door and adapted to illuminate the interior ofsaid oven, said door having means for permitting a view of the interiorof said oven from'its exterior.

5. In combination, an oven provided with a door, lighting-means seatedin said door and adapted to illuminate the interior of said oven, andmeans for permitting a view of the interior of said oven from itsexterior. I

6. In combination, an oven provided with a door, li hting-means seatedin the inner wall of said door and adapted. to illuminate the interiorof said oven.

Signed at Waterloo, Iowa, this 31st day of March, 1910. THOMAS CASCADEN,JR. l/Vitnesses:

. Errm W. FOWLER,

Gno. G. KENNEDY.

